Commit c537376c authored by Thierry Reding's avatar Thierry Reding Committed by Stephen Warren

ARM: tegra: Special-case the 3D clamps on Tegra124

A separate register is used to remove the clamps for the GPU on
Tegra124. In order to be able to use the same API, special-case
this particular partition.
Signed-off-by: default avatarThierry Reding <>
Signed-off-by: default avatarStephen Warren <>
parent 9a716579
......@@ -41,6 +41,8 @@
#define PWRGATE_STATUS 0x38
#define GPU_RG_CNTRL 0x2d4
static int tegra_num_powerdomains;
static int tegra_num_cpu_domains;
static const u8 *tegra_cpu_domains;
......@@ -136,6 +138,17 @@ int tegra_powergate_remove_clamping(int id)
if (id < 0 || id >= tegra_num_powerdomains)
return -EINVAL;
* The Tegra124 GPU has a separate register (with different semantics)
* to remove clamps.
if (tegra_chip_id == TEGRA124) {
if (id == TEGRA_POWERGATE_3D) {
pmc_write(0, GPU_RG_CNTRL);
return 0;
* Tegra 2 has a bug where PCIE and VDE clamping masks are
* swapped relatively to the partition ids
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